The AFE 24-91059 Momentum HD Pro 5R Replacement Air Filter is a direct replacement for your Momentum HD Intake System. With five layers of progressively finer mesh cotton gauze media between 100% polyurethane top and base, this high flow “oiled” conical performance filter provides maximum flow with highest fill rate available on the market. Washable and reusable for multiple cleanings, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Inverted top design offers additional dust holding capacity for longer service cycle. Pliable polyurethane flange with integrated bumps insures tight, no leak seal over the life of the filter.